Speaking on The Ellen DeGeneres Show, where she was promoting her new book 'Nowhere But Up', Mallette explained that she thinks they're incredibly compatible and she approves of them as a couple:

"Seriously…how can you not like her? She’s so sweet. She’s good for him and they’re great together.”

Bieber has also been busy on the interview circuit and stopped by America's Today Show this morning (September 18) where he serenaded his mother. He uploaded the touching clip to Twitter and accompanied it with the caption:

"i sang to my mom on the the @todayshow this morning. her book is out too now. love you @pattiemallette ! proud of u!"

The 'As Long As You Love Me' heartthrob has also now passed the 28 million followers mark on social networking site Twitter, putting him just behind modern pop icon Lady Gaga.